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2026年4月9日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
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Shared-memory objects in multiprocessing
...es (even over a network).
The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized and sent between processes.
There are a wealth of parallel processing libraries and approaches...
SQLAlchemy IN clause
...rnative way is using raw SQL mode with SQLAlchemy, I use SQLAlchemy 0.9.8, python 2.7, MySQL 5.X, and MySQL-Python as connector, in this case, a tuple is needed. My code listed below:
id_list = [1, 2, 3, 4, 5] # in most case we have an integer list or set
s = text('SELECT id, content FROM myTable W...
How to prevent errno 32 broken pipe?
Currently I am using an app built in python. When I run it in personal computer, it works without problems.
4 Answers
...
An efficient way to transpose a file in Bash
...
A Python solution:
python -c "import sys; print('\n'.join(' '.join(c) for c in zip(*(l.split() for l in sys.stdin.readlines() if l.strip()))))" < input > output
The above is based on the following:
import sys
for c i...
How do I perform the SQL Join equivalent in MongoDB?
...
$unwind - because data is denormalised correctly, else wrapped in arrays
Python code..
db.LeftTable.aggregate([
# connect all tables
{"$lookup": {
"from": "RightTable",
"localField": "ID",
...
How can I access Google Sheet spreadsheets only with Javascript?
...recipes" (JSON payloads) for core API requests
If you're not "allergic" to Python (if you are, just pretend it's pseudocode ;) ), I made several videos with more "real-world" samples of using the API you can learn from and migrate to JS if desired (NOTE: even though it's Python code, most API reques...
TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
About[size=15.008px]Introducing TextEnhancer, the ultimate extension for enhancing text formatting in your App Inventor projects! With TextEnhancer, you can effortlessly add advanced text features to your app, making it more dynamic and engaging for your users.Blocks[size=15.008px]SetTextJustificati...